diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 45ba7d4..ed48fde 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
         toxenv: ["py38", "quality", "docs"]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: setup python
         uses: actions/setup-python@v4
         with:
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 4d4e70c..8ee0cae 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: setup python
         uses: actions/setup-python@v4
         with: